I plan to order this tablet for work. I do a lot with sprinkler systems and am developing an app to use to control the zones while I am in the field, so being a waterproof tablet is a must for my needs. My real questions is do I need to order a case for this tablet or not. Would this be durable enough to leave it naked, and go with a charging dock work desk work, or a should i get a case and stick with plugging it in each time i need to work at my desk? Also can anyone recommend a good wireless keyboard to go with this tablet?